<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <!-- 搜索,添加 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="6">
          <el-button class="add_btn" type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- table表格区 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column
          label="商品价格(元)"
          prop="goods_price"
          width="100px"
        ></el-table-column>
        <el-table-column
          label="商品重量"
          prop="goods_weight"
          width="70px"
        ></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">{{
            scope.row.add_time | dateForm
          }}</template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      >
      </el-pagination>
    </el-card>
    <!-- 修改商品名称的对话框 -->
    <el-dialog
      title="修改商品"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClose"
    >
      <span>敬请期待</span>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editDialogVisible = false">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //获取商品列表参数
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 10
      },
      //商品列表
      goodsList: [],
      //商品总条数
      total: 0,
      //修改商品对话框
      editDialogVisible: false,
      editForm: {

      }
    };
  },
  created() {
    this.getGoodsList();
  },
  methods: {
    //根据分页获取商品列表值
    async getGoodsList() {
      const { data: res } = await this.$http.get("goods", {
        params: this.queryInfo
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取商品失败");
      }
      this.goodsList = res.data.goods;
      this.total = res.data.total;
    },
    //点击添加商品,跳转到添加商品页面
    goAddPage() {
        this.$router.push('/goods/add')
    },
    //pagesize变化时
    handleSizeChange(newSize) {
        this.queryInfo.pagesize = newSize;
        this.getGoodsList();
    },
    //页码改变时
    handleCurrentChange(newPage) {
        this.queryInfo.pagenum = newPage;
        this.getGoodsList();
    },
    //删除商品
    async removeById(id) {
        const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err);
        if(confirmResult !== 'confirm'){
            return this.$message.info('已取消删除')
        }
        const {data:res} = await this.$http.delete('goods/' + id);
        if(res.meta.status !== 200) {
            return this.$message.error('删除商品失败')
        }
        this.$message.success('删除商品成功');
        this.getGoodsList();
    },
    //展示商品修改对话框
    showEditDialog() {
        this.editDialogVisible = true;
    },
    //修改商品对话框关闭
    editDialogClose() {

    }
  }
};
</script>
<style lang="less" scoped>
</style>